CVE-2026-54893Public exploit

Graph request redirection via unencoded sender address

Published Jul 6, 2026 · Updated Jul 6, 2026

URL path injection in Swoosh 1.12.0 through 1.26.2 allows attackers to redirect authenticated Microsoft Graph requests. The MsGraph api_endpoint_url/2 function inserts the email sender address verbatim into /users/{from}/sendMail, letting URL-special characters rewrite the path and query string. Exploitation requires an application to use the MsGraph adapter with an untrusted sender address, and effects remain within the bearer token's scopes; fixed sender addresses are unaffected.

CVSS severity2.1
Low
EPSS probability0.20%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

URL path injection in Swoosh 1.12.0 through 1.26.2 allows attackers to redirect authenticated Microsoft Graph requests. The MsGraph api_endpoint_url/2 function inserts the email sender address verbatim into /users/{from}/sendMail, letting URL-special characters rewrite the path and query string. Exploitation requires an application to use the MsGraph adapter with an untrusted sender address, and effects remain within the bearer token's scopes; fixed sender addresses are unaffected.

The record

CVE
CVE-2026-54893
Published
Jul 6, 2026
Updated
Jul 6, 2026
Vendor
Swoosh
Product
Swoosh
Classifications
CWE-116, CAPEC-664, T1190
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 6, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 6, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=1.12.0 <1.26.3
  2. Affected versionversion=23bfcdab71aee4613858ba6d116bb3311b72aa58 <e38235453e81d1727bfc8d91e69ec4cb211ccf61

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Swoosh · Swooshversion=1.12.0 <1.26.3; version=23bfcdab71aee4613858ba6d116bb3311b72aa58 <e38235453e81d1727bfc8d91e69ec4cb211ccf61

Published CVSS scores

2.1Erlang Ecosystem FoundationCVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:L/SI:L/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-116Improper Encoding or Escaping of Output
CAPEC-664Server Side Request Forgery
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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